* ext/{dl,fiddle}/win32/lib/win32/registry.rb
  (Win32::Registry.expand_environ): use suitable encoding for the
  string.

* ext/{dl,fiddle}/win32/lib/win32/registry.rb (Win32::Registry#read):
  should return REG_SZ, REG_EXPAND_SZ and REG_MULTI_SZ values with
  the expected encoding -- assumed as the same encoding of name.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41847 b2dd03c8-39d4-4d8f-98ff-823fe69b080e